Παραπομπή APA
Kahn, H., Brown, W. M., Martel, L., & Hudson Institute. (1976). The next 200 years: A scenario for America and the world. New York: Morrow.
Παραπομπή Chicago StyleKahn, Herman, William Morle Brown, Leon Martel, and Hudson Institute. The Next 200 Years: A Scenario for America and the World. New York: Morrow, 1976.
Παραπομπή MLAKahn, Herman, William Morle Brown, Leon Martel, and Hudson Institute. The Next 200 Years: A Scenario for America and the World. New York: Morrow, 1976.
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